From 1cc788de843169400d70f26e533417f3a0a95b29 Mon Sep 17 00:00:00 2001
From: Nate Sesti <sestinj@gmail.com>
Date: Sat, 15 Jul 2023 19:14:01 -0700
Subject: one window wait for other to create venv

---
 extension/src/activation/environmentSetup.ts | 99 +++++++++++++++++-----------
 1 file changed, 60 insertions(+), 39 deletions(-)

(limited to 'extension/src/activation/environmentSetup.ts')

diff --git a/extension/src/activation/environmentSetup.ts b/extension/src/activation/environmentSetup.ts
index 7a0d24d4..928fe04b 100644
--- a/extension/src/activation/environmentSetup.ts
+++ b/extension/src/activation/environmentSetup.ts
@@ -53,6 +53,7 @@ async function retryThenFail(
           break;
       }
     } finally {
+      console.log("After retries, failed to set up Continue extension", msg);
       vscode.window.showErrorMessage(msg);
     }
 
@@ -232,57 +233,77 @@ async function getLinuxAptInstallError(pythonCmd: string) {
   return `[Important] Continue needs to create a Python virtual environment, but python3.${version}-venv is not installed. Please run this command in your terminal: \`${installVenvCommand}\`, reload VS Code, and then try again.`;
 }
 
-async function setupPythonEnv() {
-  console.log("Setting up python env for Continue extension...");
-
-  const [pythonCmd, pipCmd] = await getPythonPipCommands();
-  const [activateCmd, pipUpgradeCmd] = getActivateUpgradeCommands(
-    pythonCmd,
-    pipCmd
-  );
+async function createPythonVenv(pythonCmd: string) {
+  if (checkEnvExists()) {
+    console.log("Python env already exists, skipping...");
+  } else {
+    // Assemble the command to create the env
+    const createEnvCommand = [
+      `cd "${serverPath()}"`,
+      `${pythonCmd} -m venv env`,
+    ].join(" ; ");
 
-  await retryThenFail(async () => {
-    // First, create the virtual environment
-    if (checkEnvExists()) {
-      console.log("Python env already exists, skipping...");
+    const [stdout, stderr] = await runCommand(createEnvCommand);
+    if (
+      stderr &&
+      stderr.includes("running scripts is disabled on this system")
+    ) {
+      console.log("Scripts disabled error when trying to create env");
+      await vscode.window.showErrorMessage(WINDOWS_REMOTE_SIGNED_SCRIPTS_ERROR);
+      throw new Error(stderr);
+    } else if (
+      stderr?.includes("On Debian/Ubuntu systems") ||
+      stdout?.includes("On Debian/Ubuntu systems")
+    ) {
+      const msg = await getLinuxAptInstallError(pythonCmd);
+      console.log(msg);
+      await vscode.window.showErrorMessage(msg);
+    } else if (checkEnvExists()) {
+      console.log("Successfully set up python env at ", `${serverPath()}/env`);
     } else {
-      // Assemble the command to create the env
-      const createEnvCommand = [
-        `cd "${serverPath()}"`,
-        `${pythonCmd} -m venv env`,
-      ].join(" ; ");
-
-      const [stdout, stderr] = await runCommand(createEnvCommand);
-      if (
-        stderr &&
-        stderr.includes("running scripts is disabled on this system")
-      ) {
-        await vscode.window.showErrorMessage(
-          WINDOWS_REMOTE_SIGNED_SCRIPTS_ERROR
-        );
-        throw new Error(stderr);
-      } else if (
-        stderr?.includes("On Debian/Ubuntu systems") ||
-        stdout?.includes("On Debian/Ubuntu systems")
-      ) {
-        const msg = await getLinuxAptInstallError(pythonCmd);
-        console.log(msg);
-        await vscode.window.showErrorMessage(msg);
-      } else if (checkEnvExists()) {
-        console.log(
-          "Successfully set up python env at ",
-          `${serverPath()}/env`
+      try {
+        // This might mean that another window is currently using the python.exe file to install requirements
+        // So we want to wait and try again
+        let i = 0;
+        await new Promise((resolve, reject) =>
+          setInterval(() => {
+            if (i > 5) {
+              reject();
+            }
+            if (checkEnvExists()) {
+              resolve(null);
+            } else {
+              console.log("Waiting for other window to create env...");
+            }
+            i++;
+          }, 5000)
         );
-      } else {
+      } catch (e) {
         const msg = [
           "Python environment not successfully created. Trying again. Here was the stdout + stderr: ",
           `stdout: ${stdout}`,
           `stderr: ${stderr}`,
+          `e: ${e}`,
         ].join("\n\n");
         console.log(msg);
         throw new Error(msg);
       }
     }
+  }
+}
+
+async function setupPythonEnv() {
+  console.log("Setting up python env for Continue extension...");
+
+  const [pythonCmd, pipCmd] = await getPythonPipCommands();
+  const [activateCmd, pipUpgradeCmd] = getActivateUpgradeCommands(
+    pythonCmd,
+    pipCmd
+  );
+
+  await retryThenFail(async () => {
+    // First, create the virtual environment
+    await createPythonVenv(pythonCmd);
 
     // Install the requirements
     if (await checkRequirementsInstalled()) {
-- 
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